If you were standing on the moon and you had a radio signal transmitter, you could send the radio signal to earth in 1.28 seconds. if radio waves travel at 3.00 x 1018 m/s, what is the distance from the moon to the earth in kilometers?

Distance between moon and earth =

Explanation:

 Distance traveled by radio waves = Velocity of radio waves * Time taken by radio waves

 Velocity of radio waves =

 Time taken by radio waves = 1.28 seconds

 So distance traveled by radio wave =

 Distance between moon and earth = =

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